Summary: Introduction Geo-Information Science

Read the summary and the most important questions on Introduction Geo-information Science

• 1 Week 1

• 1.2 Dinsdag

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• What are the steps in data modeling?

  1. Spatial perception (=database and application)
  

  • tangible/real, virtual, continuous, discrete

  2. Spatial representation
  

  • fields (location based), objects (entity based)

  3. Data structure/model
  

  • raster, vector

  4. Database and application (spatial perception) 
  

  • thematic/geometry
    

• What are the 4 possible catagories of spatial perception?

  1. Virtual
  2. Tangible
  3. Discrete
  4. Continuous

• What is a discrete phenomena?

  1. Thematic
  2. Categoriaal
  3. Discontinuous
  
  
  Phenomena represented by objects with clear boundary. Everything inside the boundary shares meaning. 
  Boundary determined value.

• What is a continuous phenomena?

  Function of the location.
  
  
  
  Phenomena represented by fields where each location has a different value.

• What is a virtual phenomena?

  Based on an administrative, legislative or conceptual construct.

• What is a tangible phenomena?

  Based on a physical, grown or constructed presence.

• What are the possible objects in the raster data model?

  1. Point (single cell)
  2. Line (sequence of neighboring cells)
  3. Area (collection of continous cells)

• 1.3 Woensdag

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• What is an integer raster?

  Nominal, ordinal.
  Value attribute table.

• What is a floating point raster?

  Interval, ratio.
  No value attribute table.

• 2 Week 2

• 2.1 Maandag

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• What are geographic coordinates?

  Longitude and latitude.